Lipids
1.
Name _________________
Lipids are not polymers, but they are organic macromolecules. The main types vary
in structure. Which 3 elements do all lipids have in common?
2. What are three main types of lipids and what are their main functions?
List the three types of lipids.
What are the main functions of each type of lipid?
1.
a.
2.
b.
3.
c.
3. What causes fatty acids to be saturated and unsaturated?
________________________________________________________________________
4. What does it mean that fatty acid chains are hydrophobic?
________________________________________________________________________
5. For the three pictures below, write the kind of lipid shown. For fats, specify saturated
and unsaturated fats.
a.
b.
c. ____________________
Over 
6. Lipids are used in living organisms
a. as parts of biological membranes.
b. to store energy.
c. to regulate chemical reactions.
d. as chemical messengers.
. Circle the appropriate answer(s).
7. Circle the parts of the molecule that need to combine through dehydration synthesis
(polymerization) to form a saturated fat. Label which are fatty acids and which is
glycerol.